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(No Model.)

P. W. T'OBEY. WIGK RAISING DEVICE FOR ARGAND LAMPS.

Patented June 17-, 1890;

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UNITED STATES PATENT OFFICE.

FREDERICK TOBEY, OF WVATERBURY, CONNECTICUT, ASSIGNOR TO THE PLUME &ATWOOD MANUFACTURING COMPANY, OF SAME PLACE.

WlCK-RAISING DEVICE FOR ARGAND LAMPS.

SPECIFICATION forming part of LettersPatent No. 430,258, dated June 17,1890.

Application filed January 21, 1890- Serial No. 337,591. (No model.)

To all whom it may concern.- B e 1t known that I, FREDERICK W. ToBEY, acitizen of the United States, residing in NVat-erbury, in the county ofNew Haven and State of Connecticut, have invented an Improvement inWick-Raising Devices for Argand Lamps, of which the following is aspecification.

In this improvement the wick-raising mechanism is composed of astationary tube attached to the lamp-reservoir, and outside of thisstationary tube is a sliding tube connected at its lower end to an armprojecting from the Argand wick-holder, so as to lift the same bodily,and a screw acts upon the parts so that the wick-holder is raised orlowered bya direct motion, and parallelism is insured by the slidingtube surrounding the stationary tube, which latter forms a guide.

In the drawings, Figure 1 is a vertical section of aportion of an Argandlamp with my improved wick-raising mechanism. Fig. 2 is a partialsectionalplan view below the line 00 00. Figs. 3 and 4 are modificationsin the positions of the screw.

The reservoir A is of any desired size or character, and the airtube B Ipasses up through the center of the same, and it is surrounded by asuitable sliding wick-holder C, to which the wick D is connected. Thetube E passes vertically through the reservoir and is soldered theretopermanently at or near the bottom end. Outside of the tube E and slidingfreely upon it is a tube H, and near the lower end of this tube H is anarm I, that extends out to the wick-holder C. This arm I may bepermanently fastened to the tube H and its outer end provided with astud 2, passing up through the tubular projection 3 upon the wick-holderC, there being a nut 4E screwed upon the upper end of such stud 2 afterit has been passed through the tubular projection 3 upon thewick-raiser.

It will now be understood that the tube II and its arm I slide freelyupon the stationary tube E, and they are guided by such tube in orderthat the movement of the parts may be parallel, and the rod F, whichpasses through the tube E, acts upon the tube II to move the same bodilyup or down and elevate or depress the wick-holder and wick reliably andwithout the risk of the wick being raised or lowered more at one sidethan'the other.

It will be understood that by unscrewing the nut 4 the arm I and stud 2will be disconnected from the wick-holder C, if so desired, in fitting awick around the wick-holder.

If only the tubes H and E are made use of, the wick could be raised orlowered by grasping the head 6 of the tube II, in which case the tube Emight be solid and simply form a guide. It is, however, preferable toemploy a rod F, passing down through the tube E and terminating as aheadG, so that the wickraiser can be acted upon from below the reservoir. InFig. 1 the rod F is reduced at its upper end to pass through a hole inthe cap or head 6 and provided with a nut, so that the rod F can berevolved without turning the tube II, and this rod is screw-threaded at7, and a nut for the same is provided at the lower end of the tube E, sothat the wick is raised by the action of the screw as the rod F isrotated. In Fig. 3 the position of the screw is changed, the threadbeing out upon the outside of the tube H and the nut being in the eye ofthe arm I, that surrounds the tube. In this case the head 6 and rod Fare permanently connected, and the tube H can be rotated by thethumb-wheel G or by seizing the head 6.

In Fig. 4 the screw-thread is represented as out upon the inside of thetube 11, and the screw-head 8 as upon the upper end of the rod F andfitting the interior of such tube H and resting upon the top end of thestationary tube E.

In all cases the tube or part E forms a stationary guide for the tube H,and the parts are accurate in their action, cheap to construct, anddurable.

I claim as my invention- 1. The combination, with the Argand reservoirand wick-holder, of the stationary tube E, passing through the reservoirand permanently fastened thereto, and the tube H, sliding upon the tubeE and having an arm or eX- tension connecting the tube with thewickholder, substantially as set forth.

2. The combination, with the wick-holder and reservoir in a lamp, of thetube E, passing through the reservoir and permanently connectedtherewith at its lower end, the tube H, sliding freely on the outside ofthe tube E and. having an arm I connected with the Wick-holder, and therod F, passing through the tube E and connected at its upper end withthe upper end of the tube II, substantially as set forth.

3. The combination, with the reservoir and Wick-holder in an Argandlamp, of the tube E, passing through the reservoir and securely fastenedthereto at its lower end, the tube H, surrounding and sliding upon thetube E, the arm I, permanently fastened to the tube H and having a studupon its end, the oylin-.

drical project-ion 3 upon the wick holder, through Which said studpasses, and the nut 4, for holding the cylindrical projection 3 inposition, the screw-rod F, passing through the stationary tube E andprovided with a thumb wheel or button at its lower end, and a connectionbetween the upper end of the screwrod F and the tube H, substantially asset forth.

4. The combination, with the wick-holder and reservoir, of a stationaryguide E, fastened in the reservoir, the tube H, moving thereon, and thearm connecting the tube H with the wick-holder, substantially as setforth.

5. The combination, with the Wick-holder and reservoir, of thestationary guide E Within the reservoir, the tube H, surrounding andmoving upon the same-,a connection between the tube H and theWick-holder, and a screwthread for raising and lowering the wickholder,substantially as set forth.

6. The combination, with the wick-holder and reservoir, of the tube E,permanently fastened in the reservoir, the tube H, surrounding andmoving upon the tube E, the rod .F, passing through the tube E, and ascrew-thread to raise or lower the wick-holder when the rod F isrotated, substantially as set forth.

Signed by me this 15th day of January, 1890.

FRED. W. TOBEY. lVitnesses:

R. T. LATTIN, JOHN H. HURLBUT.

